:root{--primary:#4f6bff;--primary-bg:#eef1ff;--grad:linear-gradient(135deg,#4f6bff,#7b61ff);--ok:#16823c;--ok-bg:#e8f7ee;--err:#d72f38;--err-bg:#fdecec;--bg:#f5f7fb;--card:#fff;--line:#eef0f5;--t1:#1f2333;--t2:#3a3f55;--t3:#667086;--shadow:0 4px 12px #1f23330f;color:var(--t2);background:var(--bg)}
body{padding-bottom:90px}header{max-width:880px;padding:22px 24px 10px}header a{color:var(--primary);font-size:18px}header span{font-size:12px}main{max-width:880px;margin-top:10px}h1,h2,h3{color:var(--t1);font-weight:600}h1{font-size:28px}h2{font-size:22px}h3{font-size:17px}.muted,footer{color:var(--t3)}.panel,.tile,.stat{background:var(--card);border:0;box-shadow:var(--shadow);border-radius:12px;padding:20px}.panel{margin:12px 0}button,select,input{background:var(--card);border-color:var(--line);color:var(--t2);min-height:44px}button{border-radius:24px}button.primary{background:var(--grad);border:0;color:white}button:disabled{opacity:1;background:var(--line);color:var(--t3)}button:focus-visible,a:focus-visible{outline-color:var(--primary)}input,select{border-radius:10px;border-color:#d4d9e5}input{min-width:0!important}a{color:var(--primary)}.greet{display:flex;justify-content:space-between;align-items:center;gap:12px;margin:12px 0 18px}.greet h2{margin:0;font-size:22px}.greet p{margin:6px 0 0;font-size:13px}.fire{background:#fff4e0;color:#9b6300;padding:8px 12px;border-radius:20px;font-size:12px;white-space:nowrap}.hero{background:var(--grad);display:flex;gap:24px;align-items:center;padding:28px;border-radius:16px;box-shadow:0 8px 20px #4f6bff25}.hero:after{display:none}.hero h3{color:white;margin:0}.hero p{font-size:13px;line-height:1.6;margin:8px 0 14px;color:#fff}.ring{width:100px;height:100px;display:grid;place-items:center;border-radius:50%;flex-shrink:0}.ring>div{width:82px;height:82px;display:flex;flex-direction:column;align-items:center;justify-content:center;background:#596bff;border-radius:50%}.ring b{font-size:25px}.ring span{font-size:12px;color:#fff}.btn-white{color:#4055dd;background:white;border:0;padding:9px 22px;min-height:44px;font-weight:600}.grid4{display:grid;grid-template-columns:repeat(4,1fr);gap:10px;padding:18px 10px}.grid4 button{border:0;background:none;display:flex;flex-direction:column;gap:8px;align-items:center;font-size:13px;padding:5px 0}.ico{width:46px;height:46px;display:grid;place-items:center;border-radius:12px;background:var(--primary-bg);color:var(--primary);font-size:27px}.sec-title{display:flex;justify-content:space-between;align-items:center;margin:22px 0 4px}.sec-title h3{margin:0}.text-button{padding:4px 10px;min-height:44px;border:0;background:none;color:var(--t3);font-size:13px}.banks{display:grid;grid-template-columns:1fr;gap:0}.bank{display:flex;width:100%;align-items:center;gap:16px;text-align:left;padding:20px}.cover{width:48px;height:48px;display:grid;place-items:center;border-radius:10px;color:white;font-size:14px;font-weight:700;flex-shrink:0}.c0{background:#4f6bff}.c1{background:#159463}.c2{background:#da9a1c}.meta{flex:1;min-width:0}.meta strong{display:block;font-size:16px;color:var(--t1);font-weight:600;margin-bottom:6px}.meta .muted{display:block;font-size:12px}.bar{display:block;background:var(--line);height:6px;border-radius:4px;overflow:hidden;margin-top:10px}.bar i{display:block;height:100%;background:var(--primary);transition:width .3s ease-out}.arrow{color:var(--t3);font-size:24px}.challenge-card{display:flex;justify-content:space-between;align-items:center;gap:15px}.challenge-card h3,.challenge-card p{margin:4px 0}.challenge-card button{color:var(--primary);border:1px solid var(--primary-bg);font-size:14px;white-space:nowrap}.tabbar{position:fixed;bottom:0;left:50%;transform:translateX(-50%);width:min(100%,880px);height:calc(70px + env(safe-area-inset-bottom));padding:4px 12px calc(6px + env(safe-area-inset-bottom));background:var(--card);display:flex;border-top:1px solid var(--line);z-index:9}.tabbar button{flex:1;border:0;background:none;color:var(--t3);display:flex;flex-direction:column;align-items:center;justify-content:center;gap:2px;font-size:12px}.tabbar button span{font-size:24px}.tabbar .on{color:var(--primary);font-weight:600}.tag{background:var(--primary-bg);color:#4055dd;border-radius:6px;font-size:12px;padding:4px 8px}.topline{margin:16px 0;font-size:13px;color:var(--t3)}progress{accent-color:var(--primary);height:4px}.quizzing main{max-width:780px}.quizzing h2{font-size:19px;font-weight:500;line-height:1.7;margin:18px 0 22px}.option{border-radius:10px;border:1px solid var(--line);min-height:56px;padding:14px;align-items:center;transition:background .2s,border-color .2s,transform .15s;gap:12px;font-size:15px;background:var(--card)}.option b{border:1px solid #bdc4d3;border-radius:50%;min-width:28px;height:28px;padding:0 6px;font-size:13px;display:grid;place-items:center;color:var(--t3);background:none;flex-shrink:0}.option span{flex:1}.option:active{transform:scale(.98)}.option.selected{border:1px solid var(--primary);background:var(--primary-bg)}.option.correct,.option.correct:disabled{border-color:var(--ok);background:var(--ok-bg);color:var(--ok)}.option.wrong,.option.wrong:disabled{border-color:var(--err);background:var(--err-bg);color:var(--err);animation:shake .3s}.option.correct b{background:var(--ok);border-color:var(--ok);color:white}.option.wrong b{background:var(--err);border-color:var(--err);color:white}.mark{font-style:normal;font-size:18px;font-weight:bold}.answer{background:var(--card);box-shadow:var(--shadow);border:1px solid var(--line);border-radius:12px;padding:18px;animation:slideup .2s ease-out}.raw{color:var(--t2);font-family:inherit}.warning{background:#fff4df;color:#805200;font-size:13px}.quizzing .panel>.row:has(#submit){position:fixed;bottom:0;left:50%;transform:translateX(-50%);width:min(100%,780px);background:var(--card);border-top:1px solid var(--line);margin:0;padding:12px 16px calc(12px + env(safe-area-inset-bottom));z-index:10;flex-wrap:wrap;gap:8px}.quizzing #submit{order:5;flex:1;min-width:140px}.quizzing #sheet,.quizzing #star,.quizzing #reveal{font-size:12px;padding:8px 12px}.quizzing .panel{margin-bottom:100px}.quizzing footer{padding-bottom:60px}.big-ring{width:150px;height:150px;border-radius:50%;display:grid;place-items:center;margin:24px auto 14px}.big-ring>div{width:124px;height:124px;border-radius:50%;background:var(--card);display:flex;flex-direction:column;justify-content:center;align-items:center}.big-ring b{font-size:36px;color:var(--t1)}.big-ring span{color:var(--t3);font-size:12px}.result-remark{text-align:center}.profile-stats{display:grid;grid-template-columns:repeat(3,1fr);text-align:center;gap:12px;margin:24px 0;font-size:12px;color:var(--t3)}.profile-stats b{display:block;color:var(--t1);font-size:24px;margin-bottom:6px}.sheet{display:grid;grid-template-columns:repeat(6,1fr);gap:12px;margin:24px 0}.sheet button,.sheet span{width:40px;height:40px;min-height:40px;padding:0;border-radius:50%;display:grid;place-items:center;margin:auto;border:0;font-size:13px}.sheet .r{background:var(--ok);color:white}.sheet .w{background:var(--err);color:white}.sheet .n{background:var(--line);color:var(--t3)}.sheet-dialog{width:min(92vw,520px);max-height:85vh;overflow:auto;border:0;border-radius:16px;padding:24px;background:var(--card);color:var(--t2);box-shadow:0 20px 80px #0003}.sheet-dialog::backdrop{background:#18203555}.result-row,.list-item{border-color:var(--line)}.import-label{display:block;line-height:2}.import-label input{display:block;width:100%;font-size:13px}
@keyframes shake{0%,100%{transform:translateX(0)}25%{transform:translateX(-3px)}75%{transform:translateX(3px)}}@keyframes slideup{from{opacity:0;transform:translateY(10px)}to{opacity:1;transform:none}}
@media(min-width:760px){.banks{grid-template-columns:1fr 1fr;gap:12px}.banks .bank:last-child{grid-column:1/-1}.hero{padding:32px 40px}.ring{width:112px;height:112px}.ring>div{width:92px;height:92px}.greet h2{font-size:26px}}
@media(max-width:600px){header{padding:18px 16px 4px}.hero{padding:22px 20px;gap:18px}.ring{width:84px;height:84px}.ring>div{width:68px;height:68px}.ring b{font-size:22px}.hero h3{font-size:16px}.greet h2{font-size:20px}.greet p{font-size:12px}.fire{padding:6px 9px}.panel{padding:16px}.grid4{padding:15px 8px}.grid4 button{font-size:12px}.bank{padding:16px;gap:12px}.meta strong{font-size:15px}.challenge-card{align-items:start;flex-direction:column}.quizzing .panel>.row:has(#submit){gap:6px}.quizzing .row button{flex-grow:0}.quizzing #submit{flex:1}.quizzing #reveal{order:6;flex-basis:100%;min-height:36px;padding:4px}.quizzing .panel{margin-bottom:150px}}
@media(prefers-color-scheme:dark){:root{--bg:#12141c;--card:#1c1f2a;--line:#303546;--primary-bg:#292e50;--t1:#f1f2fa;--t2:#d4d7e6;--t3:#a1a9c2;--ok:#68d994;--ok-bg:#173827;--err:#ff9b9b;--err-bg:#42242a}input,select{border-color:#42485d}.tag{color:#b0bfff}.btn-white{background:#fff;color:#4055dd}.warning,.fire{background:#382c19;color:#f7ce84}.hero h3,.hero p{color:#fff}.option.correct b{color:#12261b}.option.wrong b{color:#301919}.stat{background:var(--card)}}
@media(prefers-reduced-motion:reduce){*,*::before,*::after{animation:none!important;transition:none!important;scroll-behavior:auto!important}}

/* Shared navigation stays outside page content. */
.tabbar[hidden]{display:none}
body:not(.quizzing) main{padding-bottom:24px}